Tank



FIG. 1 is a front, left, top perspective view of a tank showing our new design;

FIG. 2 is a cross-sectional view as indicated in FIG. 1;

FIG. 3 is a rear, right, bottom perspective view thereof;

FIG. 4 is an enlarged front, right, bottom perspective view thereof;

FIG. 5 is a front elevation view thereof;

FIG. 6 is a rear elevation view thereof;

FIG. 7 is a right side view thereof;

FIG. 8 is a left side view thereof;

FIG. 9 is a cross-sectional view as indicated in FIG. 5;

FIG. 10 is a top plan view thereof;

FIG. 11 is a bottom plan view thereof;

FIG. 12 is a cross-sectional view as indicated in FIG. 7; and,

FIG. 13 is a cross-sectional view as indicated in FIG. 8.

The broken lines of even length shown in FIGS. 1-13 illustrate portions of the tank that form no part of the claimed design. 

CLAIM The ornamental design for a tank, as shown and described. 